mercredi 6 avril 2016

Computer-Simulated Image of a Supermassive Black Hole












NASA patch.

April 6, 2016


This computer-simulated image shows a supermassive black hole at the core of a galaxy. The black region in the center represents the black hole’s event horizon, where no light can escape the massive object’s gravitational grip. The black hole’s powerful gravity distorts space around it like a funhouse mirror. Light from background stars is stretched and smeared as the stars skim by the black hole.

Astronomers have uncovered a near-record breaking supermassive black hole, weighing 17 billion suns, in an unlikely place: in the center of a galaxy in a sparsely populated area of the universe. The observations, made by NASA’s Hubble Space Telescope and the Gemini Telescope in Hawaii, may indicate that these monster objects may be more common than once thought.

Until now, the biggest supermassive black holes – those roughly 10 billion times the mass of our sun – have been found at the cores of very large galaxies in regions of the universe packed with other large galaxies. In fact, the current record holder tips the scale at 21 billion suns and resides in the crowded Coma galaxy cluster that consists of over 1,000 galaxies.

Related article:

Astronomers have uncovered a near-record breaking supermassive black hole:
http://orbiterchspacenews.blogspot.ch/2016/04/behemoth-black-hole-found-in-unlikely.html

Image Credit: NASA, ESA, and D. Coe, J. Anderson, and R. van der Marel (STScI)/Sarah Loff.

Greetings, Orbiter.ch

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